Assessing sediment yield and streamflow with SWAT model in a small sub-basin of the Cantareira System
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/49000 |
Resumo: | Hydro-sedimentological models might be useful tools for investigating the effectiveness of soil and water conservation practices. However, evaluating the usefulness of such models requires that predictions are tested against observational data and that uncertainty from model parameterization is addressed. Here we aimed to evaluate the capacity of the SWAT model to simulate monthly streamflow and sediment load in the Posses creek catchment (12 km2), Southeast Brazil. The SUFI-2 algorithm from SWAT-CUP was applied for calibration, testing, uncertainty, and sensitivity analysis. The model was calibrated and initially tested using discharge and sediment load data, which were measured at the catchment outlet. Additionally, we used soil loss measurements from erosion plots within the catchment as independent data for model evaluation. Average monthly streamflow simulations obtained satisfactory results, with Nash-Sutcliffe coefficient (NSE) values of 0.75 and 0.51 for the calibration and testing periods, respectively. Sediment load simulations also displayed satisfactory results for calibration (NSE = 0.65) and testing (NSE = 0.52). However, the comparison with independent plot data revealed that SWAT severely overestimated hillslope erosion rates and compensated it with high sediment channel deposition. Moreover, the model was not sensitive to the parameters used for calculating hillslope sediment yields. Therefore, it should be used with caution for evaluating the interactions between land use, soil erosion, and sediment delivery. We found that the commonly used outlet-based approach for model calibration and testing can lead to internal misrepresentations, and models can reproduce the right answer for the wrong reasons. |
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Assessing sediment yield and streamflow with SWAT model in a small sub-basin of the Cantareira SystemSediment yieldsSediment transport modelsSoil erosion modelsModel invalidationModel testingSedimentos - ProdutividadeModelo de Transporte de sedimentosSolos - ErosãoHydro-sedimentological models might be useful tools for investigating the effectiveness of soil and water conservation practices. However, evaluating the usefulness of such models requires that predictions are tested against observational data and that uncertainty from model parameterization is addressed. Here we aimed to evaluate the capacity of the SWAT model to simulate monthly streamflow and sediment load in the Posses creek catchment (12 km2), Southeast Brazil. The SUFI-2 algorithm from SWAT-CUP was applied for calibration, testing, uncertainty, and sensitivity analysis. The model was calibrated and initially tested using discharge and sediment load data, which were measured at the catchment outlet. Additionally, we used soil loss measurements from erosion plots within the catchment as independent data for model evaluation. Average monthly streamflow simulations obtained satisfactory results, with Nash-Sutcliffe coefficient (NSE) values of 0.75 and 0.51 for the calibration and testing periods, respectively. Sediment load simulations also displayed satisfactory results for calibration (NSE = 0.65) and testing (NSE = 0.52). However, the comparison with independent plot data revealed that SWAT severely overestimated hillslope erosion rates and compensated it with high sediment channel deposition. Moreover, the model was not sensitive to the parameters used for calculating hillslope sediment yields. Therefore, it should be used with caution for evaluating the interactions between land use, soil erosion, and sediment delivery. We found that the commonly used outlet-based approach for model calibration and testing can lead to internal misrepresentations, and models can reproduce the right answer for the wrong reasons.Sociedade Brasileira de Ciência do Solo2022-01-24T21:59:19Z2022-01-24T21:59:19Z2021-10info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfPONTES, L. M. et al. Assessing sediment yield and streamflow with SWAT model in a small sub-basin of the Cantareira System. Revista Brasileira de Ciência do Solo, Viçosa, MG, v. 45, e0200140, 2021. DOI: https://doi.org/10.36783/18069657rbcs20200140.http://repositorio.ufla.br/jspui/handle/1/49000Revista Brasileira de Ciência do Soloreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessPontes, Lucas MachadoBatista, Pedro Velloso GomesSilva, Bárbara Pereira ChristofaroViola, Marcelo RibeiroRocha, Humberto Ribeiro daSilva, Marx Leandro Naveseng2023-05-03T11:40:39Zoai:localhost:1/49000Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2023-05-03T11:40:39Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Assessing sediment yield and streamflow with SWAT model in a small sub-basin of the Cantareira System |
title |
Assessing sediment yield and streamflow with SWAT model in a small sub-basin of the Cantareira System |
spellingShingle |
Assessing sediment yield and streamflow with SWAT model in a small sub-basin of the Cantareira System Pontes, Lucas Machado Sediment yields Sediment transport models Soil erosion models Model invalidation Model testing Sedimentos - Produtividade Modelo de Transporte de sedimentos Solos - Erosão |
title_short |
Assessing sediment yield and streamflow with SWAT model in a small sub-basin of the Cantareira System |
title_full |
Assessing sediment yield and streamflow with SWAT model in a small sub-basin of the Cantareira System |
title_fullStr |
Assessing sediment yield and streamflow with SWAT model in a small sub-basin of the Cantareira System |
title_full_unstemmed |
Assessing sediment yield and streamflow with SWAT model in a small sub-basin of the Cantareira System |
title_sort |
Assessing sediment yield and streamflow with SWAT model in a small sub-basin of the Cantareira System |
author |
Pontes, Lucas Machado |
author_facet |
Pontes, Lucas Machado Batista, Pedro Velloso Gomes Silva, Bárbara Pereira Christofaro Viola, Marcelo Ribeiro Rocha, Humberto Ribeiro da Silva, Marx Leandro Naves |
author_role |
author |
author2 |
Batista, Pedro Velloso Gomes Silva, Bárbara Pereira Christofaro Viola, Marcelo Ribeiro Rocha, Humberto Ribeiro da Silva, Marx Leandro Naves |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Pontes, Lucas Machado Batista, Pedro Velloso Gomes Silva, Bárbara Pereira Christofaro Viola, Marcelo Ribeiro Rocha, Humberto Ribeiro da Silva, Marx Leandro Naves |
dc.subject.por.fl_str_mv |
Sediment yields Sediment transport models Soil erosion models Model invalidation Model testing Sedimentos - Produtividade Modelo de Transporte de sedimentos Solos - Erosão |
topic |
Sediment yields Sediment transport models Soil erosion models Model invalidation Model testing Sedimentos - Produtividade Modelo de Transporte de sedimentos Solos - Erosão |
description |
Hydro-sedimentological models might be useful tools for investigating the effectiveness of soil and water conservation practices. However, evaluating the usefulness of such models requires that predictions are tested against observational data and that uncertainty from model parameterization is addressed. Here we aimed to evaluate the capacity of the SWAT model to simulate monthly streamflow and sediment load in the Posses creek catchment (12 km2), Southeast Brazil. The SUFI-2 algorithm from SWAT-CUP was applied for calibration, testing, uncertainty, and sensitivity analysis. The model was calibrated and initially tested using discharge and sediment load data, which were measured at the catchment outlet. Additionally, we used soil loss measurements from erosion plots within the catchment as independent data for model evaluation. Average monthly streamflow simulations obtained satisfactory results, with Nash-Sutcliffe coefficient (NSE) values of 0.75 and 0.51 for the calibration and testing periods, respectively. Sediment load simulations also displayed satisfactory results for calibration (NSE = 0.65) and testing (NSE = 0.52). However, the comparison with independent plot data revealed that SWAT severely overestimated hillslope erosion rates and compensated it with high sediment channel deposition. Moreover, the model was not sensitive to the parameters used for calculating hillslope sediment yields. Therefore, it should be used with caution for evaluating the interactions between land use, soil erosion, and sediment delivery. We found that the commonly used outlet-based approach for model calibration and testing can lead to internal misrepresentations, and models can reproduce the right answer for the wrong reasons. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-10 2022-01-24T21:59:19Z 2022-01-24T21:59:19Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
PONTES, L. M. et al. Assessing sediment yield and streamflow with SWAT model in a small sub-basin of the Cantareira System. Revista Brasileira de Ciência do Solo, Viçosa, MG, v. 45, e0200140, 2021. DOI: https://doi.org/10.36783/18069657rbcs20200140. http://repositorio.ufla.br/jspui/handle/1/49000 |
identifier_str_mv |
PONTES, L. M. et al. Assessing sediment yield and streamflow with SWAT model in a small sub-basin of the Cantareira System. Revista Brasileira de Ciência do Solo, Viçosa, MG, v. 45, e0200140, 2021. DOI: https://doi.org/10.36783/18069657rbcs20200140. |
url |
http://repositorio.ufla.br/jspui/handle/1/49000 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Ciência do Solo |
publisher.none.fl_str_mv |
Sociedade Brasileira de Ciência do Solo |
dc.source.none.fl_str_mv |
Revista Brasileira de Ciência do Solo reponame:Repositório Institucional da UFLA instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Repositório Institucional da UFLA |
collection |
Repositório Institucional da UFLA |
repository.name.fl_str_mv |
Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
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1784550160771055616 |